Electronically operated lock cylinder

Abstract

The lock includes a first shaft rotatably mounted in the core and a second shaft rotatably mounted in the core and coaxial with the first shaft. A clutch is disposed on the first shaft and rotationally fixed to the first shaft but axially shiftable. The lock also includes a slider with a finger, where the finger is engaged with the clutch, and a motor is configured to shift the slider axially between a first position and a second position. In the first position, the clutch is disengaged from the second shaft, and in the second position, the clutch is engaged with the second shaft, such that rotation of the first shaft causes rotation of the second shaft.

We claim: 
     
       1. An assembly for an electronically operated lock cylinder, comprising:
 a core; 
 a first shaft rotatably mounted in the core; 
 a second shaft rotatably mounted in the core and coaxial with the first shaft; 
 a first cam and a second cam, each rotatably mounted in the core and coaxial with the first shaft, the first cam including a first lug and the second cam including a second lug, the first lug and the second lug each operatively couplable to a deadbolt; 
 a clutch disposed on the first shaft and shiftable from a first position to a second position; 
 a motor disposed in the core and operatively coupled to the clutch and configured to shift the clutch from the first position to the second position; 
 wherein when the clutch is in the first position, the first shaft is operatively coupled to the first cam, and the second shaft is decoupled from both the first cam and the second cam; and 
 wherein when the clutch is in the second position, both the first shaft and the second shaft are operatively coupled to the second cam. 
 
     
     
       2. The assembly of  claim 1 , further comprising a slider operatively connected to the motor, the slider being operatively coupled to the clutch. 
     
     
       3. The assembly of  claim 2 , the slider including a finger, the finger being disposed within a recess in the clutch. 
     
     
       4. The assembly of  claim 2 , a worm gear attached the motor and a spring disposed over the worm gear, the spring including a compressed portion disposed on the teeth of the worm gear such that rotation of the worm gear causes linear motion of the spring along the worm gear. 
     
     
       5. The assembly of  claim 4 , wherein the linear motion of the spring causes linear motion of the slider and clutch to shift the clutch between the first position and the second position. 
     
     
       6. The assembly of  claim 1 , wherein the clutch is shifted linearly along the first shaft from the first position to the second position. 
     
     
       7. The assembly of  claim 1 , further including a clip disposed in the core, the clip retaining the first shaft in the core, the clip allowing rotational movement of the first shaft but preventing axial movement. 
     
     
       8. The assembly of  claim 1 , the first shaft including a recess, a ball and spring disposed in the recess, the core including a detent, the ball configured to be disposed in the detent to axially align the first shaft. 
     
     
       9. The assembly of  claim 1 , the first shaft including a spline, the clutch including a hub and recess, the spline configured to engage the recess in both the first and second position to maintain axial alignment between the first shaft and the hub. 
     
     
       10. The assembly of  claim 1 , the clutch including a clutch spline. 
     
     
       11. The assembly of  claim 10 , wherein the clutch spline is engaged with the first cam when the clutch is in the first position. 
     
     
       12. The assembly of  claim 10 , wherein the clutch spline is engaged with the second cam and the second shaft when the clutch is in the second position. 
     
     
       13. The assembly of  claim 1 , further comprising an access housing having an access knob, the access knob being operatively coupled to the second shaft. 
     
     
       14. The assembly of  claim 13 , the access housing containing an input for receiving an electronic credential. 
     
     
       15. The assembly of  claim 14 , the input is one or more wireless antennas. 
     
     
       16. The assembly of  claim 15 , wherein the one or more wireless antennas includes at least one of an RFID, Bluetooth, BLE, NFC, or Mobile ID antenna. 
     
     
       17. The assembly of  claim 14 , the input including a biometric sensor. 
     
     
       18. The assembly of  claim 14 , the input including a keypad. 
     
     
       19. The assembly of  claim 14 , the core including a wiring channel and a wire disposed in the wiring channel, the wire in communication with the input. 
     
     
       20. The assembly of  claim 19 , further comprising a control housing operatively coupled to the first shaft, at least one battery disposed in the control housing. 
     
     
       21. The assembly of  claim 1 , further comprising an antenna configured to operatively couple the assembly to the internet.